Shuttle embroidery machine



E. VERSE. SHUTTLE EMBROIDERY MACHINE. APPLICATION FILED AUG. 25' I92].

, 427. 5 4 Patented Aug. 29,1922. 1 I. fl 2 sugars-smut I.

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E. VERSE.

- SHUTTLE EMBROIDERY MACHINE. APPLICATION FILED Aums, 1921'. v

Patented Aug. 29, 1922.

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Emits vnnsn, or CHEMNITZ, GERMANY, assien'onmoMAscHINnNFABmK K PPAKTIENGESELLSUHAFT, or Karrie-L; CHEMNITZ, ennmanmn COMPANY OF-GER-'MA'NY. I

SHUTTLE EMBROIDERY MAGHINE Specification of Letters'latent. Patentgd A1129, 1922,

Application filed August 25, 1921. Serial No.=495,209.

(GRANTED UNDER THE rnovisrons or THE ACT or'iviancn 3, 1 1921, 41 smart,1313,

To (ZZZ whom it may concern.

lie it known that I, EMU. Vnnsn, a citizen of Germany, and a resident ofGhemnitz, Germany. have invented certain new and usefulIn'iprovements inShuttle Embroid ery- Machines (for which I have obtained atents inGermany numbered 344,34l and 17,261), of which the following is aspecification.

This invention relates to shuttle embroidery machines wherein curvedshuttles are reciprocated in curved shuttleraces inclined at an angle ofless than 90 de rees to the longitudinal axis of the machine.

In machines of this type it is necessary not only to propel the shuttlein a curved path within the curved shuttle race, but also to traversethe shuttle substantially at right angles thereto, owing to theinclination of the shuttle race.

According to the present invention the shuttle is propelled in the usualmanner by means of a driving element projecting from an oscillatoryshaft, but instead of travers ing the shuttle by axial displacement ofthe shaft as heretofore proposed the shuttle is traversed by means ofaxial displacement of a longitudinal member interposed between thedriving element and the shuttles. In this manner the weight of the partswhich require to be longitulinally displaced is considerably diminished.I

A further object of this invention is to minimize vibration of themachine frame, due to reversal of movement during axial displacement ofthe longitudinal member first in one longitudinal direction and then inthe other.

Reference will be hereinafter made to the accompanying explanatorydrawings where- Fig. 1 is a fragmentary cross section showing the mainparts of the shuttle mechanism.

fig. 2 is a plan of Fig. 1.

Fig. 3 is a rear elevationof the mechanism.

Fig. 4 is a side view, partly in section, and Fig. 5 a plan showingamodified arrangement.

Figs. 6 and 7 are views corresponding to Figs. 4c and 5 showing afurther variation.

Fig. 8 is a viewcorresponding to Fig. 1

showing a further development thereof and Fig. 9 is fragmentary rearview thereof.

As shown in F igs. 1,.v 2. and.;3', the .oscillatory driving shaftlcarries arms or; driving elements 2 supporting alongitudinal bar'3, theshuttles 4 being reciprocatediwithin curved shuttle races 5 bymeans of;drive pins'G. The shuttle races 5 are also' inclined at an angle of lessthan 90 degreees to the longitudinal axis of the machine (as clearlyseen in Fig. 3).

The shaft 1 is mounted in bearings 7 which also support the shuttle racebar 9. Thearms 2 are pivotally connected to the shaft 1 by means ofsleeves 13 and hinge pins 14; and are also pivotally connected to thebar 3 by shackles 15. A shaft 11, toothed sector 12, rack and guides 8serve to draw out the rear carriage in the usual manner when insertingthe material. The hinge pins 1 1 and shackles 15 of the arms 2 enablethe bar 3 to follow the inclination of the shuttle races during theoscillations imparted to it from the oscillatory shaft 1, withoutnecessitating axial displacement of the latter.

The displacement of the bar 3 may be effected in variousways. In Fig. 3the bar 3 carries a roller 16 working in inclined guides 17 fixed uponthe shuttle race bar 9. in Figs. 1 and 5 the bar 3 is supported bybrackets 18 slidable upon pins 19 projecting from levers 20 fixed uponthe shaft 1. In Figs. 6 and 7 the arm 21 fixed upon the shaft 1 isshaped at its extremity to form a guide for the sliding bar 3.

In order to minimize vibration of the machine frame due to the reversalof movement of the bar 3, the latter may be displaced longitudinally bythe same driving mechanism as that effecting the oscillation of theshaft 1. As the longitudinal movement of the bar is small in comparisonto its oscillatory movement, the mechanism may be designed to providevery smooth operation of the machine. Such an arrangement is illustratedin Figs. 8 and 9. The shaft 1 is oscillated from a cam'22 by means of alever 23, rods 24- and 25 and crank 26'. The bar 3 is connected to therod 25by a link 27 and bell inclination of the shuttle races 5throughthe medium of the crank 28 and link 27.

Claims: I

1i In a shuttle embroidery machine, a curved shuttle race inclined tothe longi-- tudinal axis of the machine, a shuttle Within said race, anoscillatory driving shaft fixed against axial displacement, alongitudinal member carried b said shaft, and adapted to drive theshuttle and means for longitudinally displacing said longitudinal memherin relation to the driving shaft.

2. In a machine as specified in claim 1, arms pivotally connected to thelongitudinal member and to the shaft to permit of thelongitudinalmovement of said member rela tive to said shaft.

3. In a machine as specified in claim 1,

member carried by said shaft and adapted to drive the shuttle, areciprocatory rod, means for reciprocating said rod, a crank connectingsaid rod and the shaft and a bell-crank connection between said rod andthe longitudinal member for displacing the latter.

In testimony whereof I hereunto affix my signature.

EMIL VERSE.

